China
Africa
Explore chapters and articles related to this topic
Ocean Hydrodynamics
Published in Victor Raizer, Optical Remote Sensing of Ocean Hydrodynamics, 2019
In fluid mechanics, the study of motion of the fluids is mainly addressed with reference to their transport properties, dispersion, mixing, and various aspects of the interactions between flows and waves. As a whole, there is a two-way interaction: fluid motion generates waves, but waves also force fluid motion. Because waves and flows often have very different spatial and temporal scales, and because they involve very different physical processes, the study of their interactions poses a considerable conceptual and mathematical challenge. Fundamental problem known as wave-mean flow interaction is concerned with coupled dynamics of waves and mean flow. It is an essential topic of geophysical fluid dynamics and one of the major driving forces of atmospheric and oceanic circulations (Bühler 2014). This topic also covers a wide range of nonlinear phenomena in oceanic science including surface hydrodynamic interactions, bifurcations, and subharmonic wave generations (Craik 1985). Here we refer to some aspects of the interactions occurring in the ocean.
Unsteady three dimensional bioconvective flow of Maxwell nanofluid over an exponentially stretching sheet with variable thermal conductivity and chemical reaction
Published in International Journal of Ambient Energy, 2022
Shafiq Ahmad, Muhammad Naveed Khan, Sohail Nadeem
Extrusion procedures benefit from the fluid dynamics provided by a stretching sheet. Sheeting material is made up of polymer and metal sheets and is used in industrial production operations. The material region between the die and the collecting mechanism should logically assume that the stretching process changes with distance from the die, while cooling begins to stretch due to the eventual solidification. The current study focuses on the flows created by an exponentially stretched sheet. Paper manufacture, crystal growth, continuous casting, glass fibre, metallurgical procedures, and other applications all use this type of flow. The principal use of such fluid motion is in the domain of geophysical fluid dynamics, which occurs naturally on Earth. Oceanography, meteorology, river flow, cloud motion, and other large-scale motions on Earth are all included in geophysical fluid dynamics. The sheet's extensibility is an important characteristic of the flow that can be used to improve the sheet's machinelike quality. Many authors have recently examined the flow and heat transmission of exponentially stretched sheets, see refs. (Nadeem, Ahmad and Muhammad 2017; Liu, Wang, and Peng 2013; Ahmad, Khan and Nadeem 2021). The two-dimensional viscous fluids were integrated with thermal radiation passing through an exponentially stretched sheet by Bidin and Nazar (2009). The heat transfer of three dimensional viscous liquid flow through an exponentially stretched sheet was studied by Liu, Wang, and Peng (2013). Ishak (2011) predicted the effect of boundary layer flow of viscous fluid passing through an exponentially stretched surface with MHD fluid flow.